Koontz Harvold. (2015). Essentials of Management (10.). Mc Graw.
Lua i Stíl Chicago (17ú heag.)Koontz Harvold. Essentials of Management. 10. Chennai: Mc Graw, 2015.
Lua MLA (9ú heag.)Koontz Harvold. Essentials of Management. 10. Mc Graw, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.